Flat-plate, low sidelobe, two-dimensional, steerable leaky-wave planar array antenna
US11158953B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 11, 2020 |
| Grant date | Oct 26, 2021 |
| Priority date | — |
| Expiry date | May 2, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q21/068
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A planar array antenna having a low-profile that provides a two dimensional, steerable, high-gain, low-sidelobe radiated RF beam patterns is presented. The antenna includes a metamaterial array of a plurality of first and second rows of unit cells, to propagate a radiation pattern along a first axis. The first rows operate in left-hand mode and the second rows operate in right-hand mode. Each of the unit cells include a volume of liquid crystal and a virtual ground connection capable of generating a potential difference for tuning the dielectric value of the liquid crystal. The antenna further includes a plurality of RF input ports disposed in a centralized location and a dual-channel center-feed network communicatively coupled to the plurality of paired first and second rows of unit cells and the plurality of RF input ports to form and control the direction of the radiated RF beam pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.